[Coco] OS9 Level 1 ver 2

[Robert Gault]

Chester A Patterson wrote:

> OS9 Level 1 Ver 2
> I was loosing sleep. I could not make a bootable disk using OS9Gen or
> Cobbler. I could only DECB backup the factory 35TSS disk.
> So...
> 1st made the equivalent of level 2 REL. The lev.1 version isn't a 87CD
> type module while lev.2 is.
> 2nd was making a handfull of bytes I found between modules OS9 and OS9p2
> This was quite a surprise.
> These are bytes are 01 D2 01 77 01 7D 01 83 01 84 01 88 01 83
> Merge a new boottrack.
> OS9Gen -t and all that.
> And BINGO! Boots every time.
> What those bytes do or why they are there is at the moment beyond me.
> 

Those are vectors, which can be seen by looking at the Level1 source 
code for NitrOS-9 on SourceForge.

          fdb   Clock
Vectors  fdb   SWI3                    SWI3
          fdb   SWI2                    SWI2
          fdb   DUMMY                   FIRQ
          fdb   SVCIRQ                  IRQ
          fdb   SWI                     SWI
          fdb   DUMMY                   NMI